Psychology AS Level
The Biological Approach
What assumptions do biopsychologists make?
Psychologists from the biological approach assume that behaviour and experiences are caused by activity in the nervous system of the body. The things that people think and feel, say and do are caused, one way or another, by electrochemical events occurring within and between the neurones that make up their nervous system, particular those in the brain. Many biopsychologists also agree that because the development of the brain is determined (at least partly) by the genes a person inherits, that behaviour may be influenced by genetic factors. Furthermore, because the genes we inherit are the result of evolution, many biopsychologists think that behavioural and psychological characteristics may have evolutionary explanations.
How do biopsychologists explain human behaviour?
Biological psychologists explain behaviour by trying to relate it to the functioning of the brain and nervous system. The brain can be subdivided into many different areas and structures and biopsychological explanations often focus on which brain areas are responsible for which types of thinking or behaviour and how they connect with other functions and brain areas. For example, biop...